Holosun HM3X 3× Magnifier with QD Mount

The Holosun HM3X 3× Magnifier is a rugged, high-performance optical accessory designed to pair with reflex red dot sights to extend effective target engagement distances. With a fixed 3× magnification, it transforms a 1× red dot into a mid-range optic while retaining rapid target acquisition. The HM3X features a flip-to-side quick-detach Picatinny mount that lets you instantly transition between unmagnified and magnified views without tools. Its durable aluminum housing, IP67 water and dust resistance, and generous 2.75″ (70 mm) eye relief make it a dependable choice for tactical rifles, AR-platforms, and competition setups. Windage and elevation adjustments allow precision alignment to your primary optic’s zero.

Key Attributes – Holosun HM3X 3× Magnifier

• Brand: Holosun
• Condition: New
• Product Type: Red Dot Sight Magnifier / Optical Accessory
• Model: HM3X 3× Magnifier
• MPN / SKU: HM3X
• Magnification: 3× fixed — extends red dot utility for mid-range shooting 
• Eye Relief: ~2.75″ (70 mm) — generous for comfortable viewing behind magnifier
• Field of View: ~7° (~37.5 ft @ 100 yds) — wider view for situational awareness 
• Mount Type: Flip-to-Side Quick-Detach Picatinny Rail Mount — enables rapid shift between magnified/unmagnified views 
• Co-Witness: Compatible with absolute & lower 1/3 co-witness using included spacer 
• Adjustment: Windage & elevation adjustment for precision zeroing relative to your red dot sight 
• Housing Material: Durable aluminum with matte black finish 
• Weather Resistance: IP67 waterproof & dustproof — reliable in adverse conditions 
• Operating / Storage Temps: Operating roughly -21°C to 60°C (varies by source) 
• Weight: ~9.8 oz (278 g) — solid build without excess bulk 
• Dimensions: ~3.9″ × 1.7″ × 2.5″ (approx.) 
• Exit Pupil: ~7.6 mm (approx.) 
• Eye Relief Compatibility: Works with most 1× red dot optics with matching rail height 
• Finish: Black
• Warranty: Manufacturer warranty